The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2003
Filed:
Oct. 17, 2001
Applicant:
Inventors:
Sumio Noda, Kanagawa-ken, JP;
Reijiro Nishida, Kanagawa-ken, JP;
Makoto Asakura, Kanagawa-ken, JP;
Masaki Murase, Kanagawa-ken, JP;
Assignee:
Kansai Paint Co., Ltd., Hyogo-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K 3/20 ; C08L 6/302 ;
U.S. Cl.
CPC ...
C08K 3/20 ; C08L 6/302 ;
Abstract
A water based coating composition prepared by reacting an epoxy resin (A) having a bisphenol A skeletal structure and a carboxyl group-containing acrylic resin (B) in the presence of an amine compound to form an acrylic-modified epoxy resin (C), and neutralizing, and dispersing the acrylic-modified epoxy resin (C) into an aqueous medium, an amount of a quaternary ammonium salt in the acrylic-modified epoxy resin (C) being in the range of 3.0×10 mol or less per one gram of the resin.